Heat dissipation structure and outdoor unit

Abstract

The utility model discloses a heat dissipation structure and an outdoor unit. The heat dissipation structure comprises a first cavity, a fan, an electric control device and an air guide piece. The first cavity is used for being communicated with the outside in an air guiding mode, and the draught fan is arranged in the first cavity. The electric control device comprises an air inlet and an air outlet. The air guide piece is arranged on the side, facing the first cavity, of the air outlet and forms an air guide channel, and the air outlet communicates with the first cavity through the air guide channel in an air guide mode. According to the scheme, effective and rapid heat dissipation at the electric control device can be achieved, the heat dissipation effect is good, and the situation that the performance of the electric control device is affected due to the fact that the temperature is too high can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation, in particular to a heat dissipation structure and an outdoor unit. Background Art

[0002] In the related art, in order to consider various factors such as integration, miniaturization and waterproofing at the same time in the heat pump system, in many cases, the electric control device is arranged above the interior of the outdoor unit. In this way, when the heat generated by the compressor inside the outdoor unit rises upward, it will accumulate on the upper top cover, making the temperature of the electric control device relatively high, especially the temperature of the driving board in the electric control device is relatively high, and it cannot dissipate heat effectively and quickly, thus affecting the performance of the machine. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a heat dissipation structure and an outdoor unit aiming at at least one defect existing in the related art mentioned in the above background art: when the temperature at the electric control device is relatively high, it cannot dissipate heat effectively and quickly.

[0004] The technical solution adopted by the utility model to solve its technical problem is to construct a heat dissipation structure, including:

[0005] A first cavity, which is used for conducting air communication with the outside;

[0006] A fan, which is arranged in the first cavity;

[0007] An electric control device, which includes an air inlet and an air outlet; and,

[0008] An air guiding member, which is arranged on the side of the air outlet facing the first cavity and forms an air guiding channel, and the air outlet is conductively communicated with the first cavity through the air guiding channel.

[0009] In one embodiment, the heat dissipation structure further includes a second cavity, the electric control device passes through the first cavity and the second cavity, and the air inlet is conductively communicated with the second cavity.

[0010] In one embodiment, the electric control device further includes:

[0011] A circuit board, which is arranged in the ventilation path from the air inlet to the air outlet.

[0012] In one embodiment, the air guiding channel is jointly defined by the air guiding member and the side of the air outlet facing the first cavity through a connecting structure.

[0013] In one embodiment, the air guiding member includes a baffle;

[0014] The connecting structure is provided on the baffle or on the side of the air outlet facing the first cavity; alternatively, a part of the connecting structure is provided on the baffle and another part is provided on the side of the air outlet facing the first cavity.

[0015] Wherein, the connecting structure includes at least three side plates arranged in sequence along the circumferential direction of the baffle, and the at least three side plates are used to connect the baffle and the side of the air outlet facing the first cavity.

[0016] In one embodiment, the outlet of the air guiding channel is located on one side of the electric control device, and the outlet direction of the air guiding channel is opposite to the air outlet direction of the air outlet.

[0017] In one embodiment, the air guiding channel is in an "L" shape.

[0018] In one embodiment, the heat dissipation structure further includes:

[0019] A radiator, which is arranged on the electric control device and located in the first cavity, and the outlet of the air guiding channel faces the radiator.

[0020] The present utility model also constructs an outdoor unit, including the heat dissipation structure described in any one of the above.

[0021] In one embodiment, the outdoor unit further includes:

[0022] A compressor, which is arranged in the second cavity.

[0023] By implementing the present utility model, the following beneficial effects are achieved:

[0024] In the heat dissipation structure of the present utility model, the first cavity is used for air conduction and communication with the outside, the fan is arranged in the first cavity, the electric control device includes at least one air inlet and at least one air outlet, the air guiding member is arranged on the side of the air outlet facing the first cavity and forms an air guiding channel, and the air outlet is in air conduction and communication with the first cavity through the air guiding channel. This solution can achieve effective and rapid heat dissipation at the electric control device, with good heat dissipation effect, and can prevent the electric control device from being affected by excessive temperature and affecting its performance. Description of the Drawings

[0025] The following will further illustrate the present utility model in conjunction with the drawings. In the drawings:

[0026] Figure 1 Shows the overall structural schematic diagram of an outdoor unit according to an embodiment of the present utility model;

[0027] Figure 2Shows a schematic structural diagram of a heat dissipation structure according to an embodiment of the present utility model;

[0028] Figure 3 Shows a schematic structural diagram of an air inlet of an electric control device according to an embodiment of the present utility model;

[0029] Figure 4 Shows a cross-sectional view of a heat dissipation structure according to an embodiment of the present utility model;

[0030] Figure 5 Shows an exploded view of an electric control device, a wind guiding member and a radiator according to an embodiment of the present utility model;

[0031] Figure 6 Shows a schematic diagram of an air flow path of a heat dissipation structure according to an embodiment of the present utility model. Detailed implementation manners

[0032] In order to have a clearer understanding of the technical features, objectives and effects of the present utility model, the specific implementation manners of the present utility model will now be described in detail with reference to the accompanying drawings.

[0033] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", "provided in", and "located in" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a chemical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] As Figure 1 and Figure 2 shown, some embodiments of the present utility model disclose a heat dissipation structure, including a first cavity 1, a fan 2, an electric control device 3, and a wind guiding member 4. Specifically:

[0037] The first cavity 1 is used for gas conduction and connection with the outside. The fan 2 is provided in the first cavity 1, and the fan 2 is used to drive the air flow. As Figure 3 and Figure 4 shown, the electric control device 3 includes an air inlet 31 and an air outlet 32. As Figure 4 described, the wind guiding member 4 is provided on the side of the air outlet 32 facing the first cavity 1 and forms a wind guiding channel 5. The air outlet 32 is in gas conduction connection with the first cavity 1 through the wind guiding channel 5.

[0038] In some embodiments, the heat dissipation structure further includes a second cavity 7. The electric control device 3 passes through the first cavity 1 and the second cavity 7, and the air inlet 31 is in gas conduction connection with the second cavity 7. For example, the first cavity 1 and the second cavity 7 are arranged side by side and are respectively rectangular. The electric control device 3 passes through the first cavity 1 and the second cavity 7 horizontally. The rectangle here is only an example and does not limit the present application.

[0039] Among them, the number of the air inlet 31 and the air outlet 32 is at least one. It can be understood that at least one can be one, two, or any number, which is not limited herein. For example, as Figure 3 shown, the electric control device 3 includes two air inlets 31, and as Figure 4 shown, the electric control device 3 includes three air outlets 32 arranged side by side.

[0040] When the fan 2 starts, air flow between the first cavity 1 and the outside can be achieved, and a negative pressure is formed in the first cavity 1, that is, a suction effect is generated, so that the air flow on the side of the electric control device 3 enters from the air inlet 31, flows through the inside of the electric control device 3, takes away the heat of the second cavity 7 from the air outlet 32, and then the hot air enters the first cavity 1 for heat dissipation under the guiding action of the air guiding channel 5. This solution can prevent the heat of the second cavity 7 from accumulating at the electric control device 3, achieve effective and rapid heat dissipation at the electric control device 3, have a good heat dissipation effect, and prevent the electric control device 3 from being affected by excessive temperature. At the same time, water splashing into the electric control device 3 can be effectively prevented.

[0041] In some embodiments, the air inlet 31 and the air outlet 32 are arranged opposite to each other, so that more internal space of the electric control device 3 through which the air flow passes can be achieved, and better heat dissipation can be realized.

[0042] In some embodiments, as Figure 4 shown, the electric control device 3 further includes a circuit board 33, and the circuit board 33 is arranged in the ventilation path from the air inlet 31 to the air outlet 32, and the heat of the circuit board 33 is taken away by the air flow. For example, the circuit board 33 includes a driving board and / or a main control board. The driving board and the main control board here are only examples and do not limit the present application.

[0043] In some embodiments, as Figure 4 shown, between the air guiding member 4 and the side of the air outlet 32 facing the first cavity 1, the air guiding channel 5 is jointly defined through a connecting structure. In some other embodiments, the air guiding member 4 includes the air guiding channel 5, that is, the air guiding channel 5 is formed by itself.

[0044] In some embodiments, the air guiding member 4 includes a baffle 41. The connecting structure is arranged on the baffle 41 or the connecting structure is arranged on the side of the air outlet 32 facing the first cavity 1. Wherein, the connecting structure includes at least three side plates arranged in sequence along the circumferential direction of the baffle 41, and the at least three side plates are used to connect the baffle 41 and the side of the air outlet 32 facing the first cavity 1. It can be understood that at least three can be three, four or any number, which is not limited herein.

[0045] In some other embodiments, as Figure 5 shown, the air guiding member 4 includes a baffle 41. A part of the connecting structure is arranged on the baffle 41, and another part is arranged on the side of the air outlet 32 facing the first cavity 1. Wherein, the connecting structure includes at least three side plates arranged in sequence along the circumferential direction of the baffle 41, and the at least three side plates are used to connect the baffle 41 and the side of the air outlet 32 facing the first cavity 1.

[0046] For example, as Figure 5 shown, the connection structure includes a first side plate 34, a second side plate 42, and a third side plate 43. The first side plate 34 is disposed on the side of the air outlet 32 facing the first cavity 1. The second side plate 42 and the third side plate 43 are disposed on the baffle 41. The first side plate 34 is respectively connected to the baffle 41, the second side plate 42, and the third side plate 43. The second side plate 42 and the third side plate 43 are respectively connected to the side of the air outlet 32 facing the first cavity 1, thereby enclosing the air guiding channel 5 as Figure 4 shown, and the opening between the second side plate 42 and the third side plate 43 is the outlet of the air guiding channel 5.

[0047] It should be noted that the first side plate 34 is disposed on the side of the air outlet 32 facing the first cavity 1, and the second side plate 42 and the third side plate 43 are disposed on the baffle 41, which is only an example and does not limit the present application. It may also be that the first side plate 34 and the second side plate 42 are disposed on the side of the air outlet 32 facing the first cavity 1, and the third side plate 43 is disposed on the baffle 41, as long as a part of the connection structure is disposed on the baffle 41 and the other part is disposed on the side of the air outlet 32 facing the first cavity 1.

[0048] Similarly, the opening between the second side plate 42 and the third side plate 43 being the outlet of the air guiding channel 5 is also only an example and does not limit the present application. It may also be that the opening between the first side plate 34 and the second side plate 42 is the outlet of the air guiding channel 5, or the opening between the first side plate 34 and the third side plate 43 is the outlet of the air guiding channel 5, as long as the opening between two of the side plates is the outlet of the air guiding channel 5.

[0049] In some embodiments, the connection structure includes at least four side plates arranged in sequence along the circumferential direction of the baffle 41. There is a gap between one of the side plates and the side of the air outlet 32 facing the first cavity 1 to form the outlet of the air guiding channel 5, and the remaining side plates are used to connect the baffle 41 and the side of the air outlet 32 facing the first cavity 1.

[0050] For example, as Figure 5As shown, the connection structure further includes a fourth side plate 44, which is disposed on the baffle 41. The fourth side plate 44 is connected to the second side plate 42 and the third side plate 43. There is a gap between the fourth side plate 44 and the side of the air outlet 32 facing the first cavity 1 to form the outlet of the air guiding channel 5, and the air guiding channel 5 is in an "L" shape.

[0051] In some embodiments, as Figure 5 shown, the extending direction of the side plates (such as the first side plate 34, the second side plate 42, the third side plate 43 and the fourth side plate 44) is in the vertical direction of the plane where the baffle 41 is located.

[0052] In some embodiments, in order to more effectively prevent water from splashing back into the electric control device 3, the outlet of the air guiding channel 5 is located on one side of the electric control device 3, and the outlet direction of the air guiding channel 5 is opposite to the air outlet direction of the air outlet 32. For example, as Figure 4 shown, in the height direction Z of the first cavity 1, the outlet of the air guiding channel 5 is located below the electric control device 3. The "below" here is only an example and does not limit the present application.

[0053] In some embodiments, in order to improve the heat dissipation effect, as Figure 4 and Figure 5 shown, the heat dissipation structure further includes a radiator 6, which is disposed on the electric control device 3 and is located in the first cavity 1. In addition, the outlet of the air guiding channel 5 faces the radiator 6.

[0054] For example, in the height direction Z of the first cavity 1, the radiator 6 is disposed at the bottom of the electric control device 3, and the radiator 6 is a heat sink, and the heat sink extends along the height direction Z of the first cavity 1. When heat accumulates or is generated by itself at the electric control device 3, the heat can be conducted to the heat sink, and the heat sink is used to increase the surface area of natural convection, thereby improving the heat dissipation effect. The heat sink and the bottom here are only examples and do not limit the present application.

[0055] As Figure 1 shown, some embodiments of the present invention also disclose an outdoor unit, including the heat dissipation structure described in any of the above embodiments, which will not be elaborated here. Among them, the electric control device 3 is used to control each electric control component in the outdoor unit, such as controlling the compressor 9, etc.

[0056] In some embodiments, as Figure 2As shown, the outdoor unit further includes an outdoor heat exchanger 8, which is used to realize the heat exchange between the refrigerant and the outside air, and the outdoor heat exchanger 8 is arranged in the first cavity 1. During heating, the blower 2 is used to extract outside air for heat exchange with the outdoor heat exchanger 8, so that the refrigerant located inside the outdoor heat exchanger 8 absorbs the heat of the outside air. During cooling, the blower 2 is used to blow out the heat of the refrigerant released after heat exchange by the outdoor heat exchanger 8 to the outside.

[0057] For example, the outdoor heat exchanger 8 is a finned heat exchanger in an "L" shape. Here, the finned heat exchanger in an "L" shape is only an example and does not limit this application.

[0058] In some embodiments, as Figure 2 shown, the outdoor unit further includes the compressor 9, which is used to provide refrigerant for the outdoor heat exchanger 8. The compressor 9 is arranged in the second cavity 7, and in the height direction Z of the first cavity 1, the compressor 9 is located below the electronic control device 3. When heat is generated during the operation of the compressor 9, the heat rises and then enters the air guide channel 5 along the Figure 6 air flow path indicated by the arrow in, and then is guided by the air guide channel 5 into the first cavity 1 for heat dissipation, so that the heat will not accumulate at the electronic control device 3.

[0059] By implementing the present utility model, the following beneficial effects are achieved:

[0060] In the heat dissipation structure of the present utility model, the first cavity 1 is used for air conduction and communication with the outside. The blower 2 is arranged in the first cavity 1. The electronic control device 3 includes at least one air inlet 31 and at least one air outlet 32. The air guiding member 4 is arranged on the side of the air outlet 32 facing the first cavity 1 and forms an air guide channel 5. The air outlet 32 is in air conduction and communication with the first cavity 1 through the air guide channel 5. This solution can achieve effective and rapid heat dissipation at the electronic control device 3, with good heat dissipation effect, and can prevent the electronic control device 3 from being affected by excessive temperature. At the same time, it can effectively prevent water (such as the condensate generated by the outdoor heat exchanger 8) from splashing back into the electronic control device 3.

[0061] It can be understood that the above embodiments only represent some implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, the above embodiments or technical features can be freely combined, and several deformations and improvements can also be made. These all belong to the protection scope of the present utility model, that is, the embodiments described in "in some embodiments" can be freely combined with any of the above or below embodiments. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present utility model shall fall within the scope covered by the claims of the present utility model.

Claims

1. A heat dissipation structure, characterized in that: include: A first cavity, the first cavity is used to communicate with the outside air; A fan, wherein the fan is disposed in the first cavity; an electric control device, the electric control device comprising an air inlet and an air outlet; and, An air guide member is disposed on a side of the air outlet facing the first cavity and is provided with an air guide channel, and the air outlet is in air-guiding communication with the first cavity via the air guide channel.

2. The heat dissipation structure according to claim 1, characterized in that: The heat dissipation structure also includes a second cavity, the electric control device is arranged in the first cavity and the second cavity, and the air inlet is in air-conducting communication with the second cavity.

3. The heat dissipation structure according to claim 1, characterized in that: The electronic control device further comprises: A circuit board is arranged in a ventilation path from the air inlet to the air outlet.

4. The heat dissipation structure according to claim 1, characterized in that: The air guiding member and the side of the air outlet facing the first cavity define the air guiding channel through a connecting structure.

5. The heat dissipation structure according to claim 4, characterized in that: The air guide member includes a baffle; The connecting structure is arranged on the baffle plate or the connecting structure is arranged on the side of the air outlet facing the first cavity; or, a part of the connecting structure is arranged on the baffle plate, and the other part is arranged on the side of the air outlet facing the first cavity; Wherein, the connection structure includes at least three side plates arranged in sequence along the circumference of the baffle, and the at least three side plates are used to connect the baffle and a side of the air outlet facing the first cavity.

6. The heat dissipation structure according to claim 1, characterized in that: The outlet of the air guiding channel is located at one side of the electric control device, and the outlet of the air guiding channel faces a direction opposite to the air outlet direction of the air outlet.

7. The heat dissipation structure according to claim 1, characterized in that: The air guiding channel is in an "L" shape.

8. The heat dissipation structure according to claim 1, characterized in that: The heat dissipation structure further includes: A radiator is arranged on the electronic control device and located in the first cavity, and the outlet of the air guide channel faces the radiator.

9. An outdoor unit, characterized in that: The heat dissipation structure comprises the heat dissipation structure according to any one of claims 1 to 8.

10. The outdoor unit according to claim 9, characterized in that: The outdoor unit further comprises: A compressor is disposed in the second cavity.

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